Seaming machine



Oct. 16, 1928.

P. H. LANGE SEAMING MACHINE Filed oct. 14. 1926 5 Smets-sheet 2 vwentoz paal ZfLa/gge wauw/ww i Oct. 16, 1928. 1,687,943

` P. H. LANGE SEAMING MACHINE Filed 06t- 14. 1926 5 Sheets-Sheet 5 L/WM oct. 16, 192s.` 1,681,943 l P. H. LANGE SEAMING MACHINE Filed Oct. 14. 1926 5 Sheets-Sheet 4.

Oct. 16, 1928.- d Y 1,687,943

P. H. LANGE SEAMING MACHINE Filed oct. 14@ 1926 5 sheets-sheet 5 Patented Oct. 16, 1928.

UNITED STATES .PATENT OFFICE. y

PAUL'H. LANGE, or BmnGEronr, CONNECTICUT, ASSIGNoaTo THE mix its M'A- vCHINE COMPANY, OFY BRIDGEPORT, CONNECTICUT, A CORPORATIOy Oli?v NEW' YORK.`

sEAMING MACHINE.

Application led October 14, 1926. Serial No. 141,492.

The present invention relates to seamin'g machines and is an improvement on theconstruction shown in Letters Patent No. 941,755 of November 30, 1909.

The main object and feature of the invention is to produce a construction that is more flexible, more `readily and extensively adjustable to compensate for inaccuracies of various kinds, and withal more rugged, substantial and simple in character.

In the accompanying drawings the invention is disclosed in a concrete and preferred form in which f Fig. 1 is a vertical sectional .view of a seamer head,`with parts broken away and omitted, embodying the invention. Y

Fig.`2ris a horizontal sectional view substantially on the plane of line 2-2 of Fig. 1. Fig. 3 is a horizontal sectional view substantially on the plane lof line 3-3 of Fig. 1.

Fig. 4 is a detail view in elevation of some of the parts shown in Fig. 1.

Fig. 5 'is a view partly in elevation and partly in section looking in the direction of arrow'5 of Fig. 1. f

Fig. 6 is a horizontal sectional view'substantially onfthe plane. of. line 6-6 of Fig. 5.

Fig. 7 is a vertical sectional View of the rotatable support for the seamingtools.

Fig. 8 isa'bottom plan view looking in the direction of arrow 8 of Fig. 7.

1 is a stationary shaft carrying at its lower' end a chuck 2 that cooperates with a pedestal, not shown, to clamp the body andr cover in manner well understood.

3 is a rotatable seaniing tool supportloosely mounted on shaft 1. The s'eaming tool support is composed of a sleeve portion 4'and a carrying member 5 in the forni of a dlsc having two opposed radial slots' 6. 'Suitable means are provided for rotating'th'e support, in the present instance taking the form of a gear 7,` carried by the sleeve, to which motion is imparted by another gear, notshown, in a manner well lrnown. v The top of gear 7 is provided withfguides S which carry slidable boxes 9 for the support of pivots 10 of bearings 11V that carry shafts 12. These latter have bearings 13 slidably mounted in slots G of the carrying member. Shafts 12 have gears 14 at their upper ends in constant mesh with stationary gear 15, and also have gears 16 at their lower ends that move in and out of mesh with gear 17 at the lower end of shaft on its own axis.

1.. Seamingtools 18 are also carried at the lower ends of shafts12. It will now be understood that rotation of member 3 causes the searning. tools to travel in an orbit around the work clamped between the chuck and vpedestal and also causes each seaming tool to rotate Suitable means are provided .toltilt shafts 'Y 12 on centers 10 to bring the seamingt'ools into and'out of engagement withthe work;

and, in the present case, these means takethe following form 19 is a'worm carried by shaft 1 andwith this Worm engage two Worm gears y 20 that extend in through openings 21 in sleevev 4. 22 and 23 indicate two cam shafts. mounted on the supporting member, each of which carries a worm gear 2() by which it is driven.A These two shafts are parallel and are j arranged on opposite sides of -themachine and at'each end of eachfcam shaft is a cam, indicated respectively by 24 and25, the former of which is fast-to its cam shaft and the latter of which is loose thereon. Said cam shafts also carry eachtwogears 26 and 27,

the kformer of whichl is fast' to its shaft and the latter of which is loose thereon;and the Varrangement issuch thateach gear and its adjacent cam moves inunison and also that gear 26 of one shaft meshes with gear 27 of v Vthe other shaft sok that each worm drives two cams, one on each shaft: or, to1put Vit diferently, the cams at one end of shafts 22and` 23 are driven in unison or together and the cams at the other end of shafts 22 and 23 are driven each lever-having a`cam1rol'l'v33. These cam rolls engage the cams on the cam shafts. The lower ends of levers 31'are@ conneetedto theV slidable' boxes 13 of one of shafts 12 vandV the lowerend of levers 32.*are connected to the slidable boxes 13 ofthe other shaft 12by the following means. 34 is apin carried latthe lower end of each lever and loosely connected to the pin is a rodv 35 that passes through an in unison or together. The objectof this con- `means of brackets 28 are twov pivots29 and 30, V v each pivot carrying twoleversl and v32 and extension 36 of bearing 13. The arrangement is in duplicate on each side so that the connections virtually constitute a yoke, and it Will be Vperceived that when levers 31 or 32 are rocked boxes 13 will be caused to slide. Nuts are associated with rod 35, Which lat'- ter is threaded, so that proper adjustments can be made. Pin 34 also carries a projection 37 that acts against a spring 38 surrounding rod 39 and abutting againstabutment member 40 so that when box 13 moves toward the work said spring 38 is compressed, the spring acting to restore the parts when rotation of the camspermits this action to take place. Abutment 40 and rod 39 are carried by member 5. In the case of the first operation roller or seaming tool, the projection indicated by 36 is rigid With box 13 but, in the case of the second operation roller, the projection consists of -a bar 41 tiltably held by screw and nuts 42 and springs 43 are employed so that when the second operation roller passes over the extra thickness of material, produced by the side seam of the body, said roller and box 13 may recede and this receding action will be taken up by said springs .'43 Without causing movement of'leve'rs 32. In

addition to the foregoing, a positive stop may be employed to limit the inward movement of the boxes 13, and such stop is in this case afforded by a' member 44pivotally connected to box 13 and passing through a bar 45, nuts 46 limiting the inward movement. i f

By the foregoing means it is possible to compensate for uavoidable variation, due to shrinkage in hardening, in the size of the seamin'g rollers; for minor variations in thickness of tin plate; for extra metal thickness at the side seam; for expansion of chucks and rollers on account of heating developed While the machine is in operation; and to prevent the seaming roller from coming in contact With the chuck when running idle.

I claim: ,y

1. The combi-nation with a tiltable seaming tool shaft'pivotally supported at one end and slidingly supported at the other, of pivotally supported levers, cams to actuate said levers, connections extending from said levers to the slidably mounted end of the shaft, and spring means to normally urge the levers and thereby the slidable end lof the shaft in one direction, and spring means admitting of movement of the slidable end of the shaft in the same direction independently of the movement of the levers.

n 2. The Combi-nation with a tiltable seaming tool shaft pivotally supported at one end and slidingly supported at the other, of pivotally supported levers, cams toactuate said levers, connections lezfitending from said levers to the slidably mounted end of the shaft,

spring means to normally urge the levers and thereby the slidable end of the shaft in one direction, spring means admitting of movement of the slidable endvof the shaft in the same direct-ion independently of the movement of the levers and means to positively limit the movement ofthe slidable end ofthe shaft in a direction opposite to that'in'ivhich the springs urge it.

The combination with a tiltable seaming tool shaft pivotally supported at one end and slidingly supported at the other, of pivotally supported levers, cams to actuate said levers, lateral extensions associatedwvith the sldable end ofv said shaft, connections from vsaid levers to said extensions, spring means to normally urge the leversand thereby the y slidable end of the shaft in one direction, and spring means admitting of movement of the slidable end of the shaft in the same dir-ection independently of the movement of the levers.

4. The combination With a tiltable seaming tool shaft pivotally supported at one end and slidingly supported at the other, of pivotally supportedlevers, cams to actuate said levers, lateral extensions associated with the slidable end of said shaft, connections from said levers to said extensions, spring means to normally urge the levers and thereby the slidable end ofthe shaft in one direction, spring'means admitting of movement of the slidable end of the shaft in the same direction independently of the movement of the of tiltable seaming tool shafts, and means to tilt the latter by rotation of theformer including z a cam at each end of each cam shaft,

one loose and the other fast on saidshaftsy means for rotating the cams at th'esame ends of the two cam shafts in unison, and 4connecn tions from said cams to said seaming tool shafts. f

6. The combination with a carrying memloer, of'tivo oppositely disposed tiltable seaming tool shafts pivotally supported at one end and slidingly supported at the othervon said carrying member, pivotally supported levers', cams to actuate said levers, connections extending from said levers to the lslidably mounted ends of the shafts,roppositely disposed abutmentson the carrier, and spring means interposed betweenthe levers and the abutments tending to move the shafts away from each other. Y j

Signed at Bridgeport, in the Acounty of ilo Fairfield and State of Connecticut this 11th vday of October, 1926.` l

PAUL H. LANGE. 

